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Image data transfer method and apparatus therefor

  • US 4,985,784 A
  • Filed: 02/03/1989
  • Issued: 01/15/1991
  • Est. Priority Date: 02/05/1988
  • Status: Expired due to Term
First Claim
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1. An image data transfer method comprising the steps of:

  • transforming an input video signal into image data through sampling and quantization;

    coding said image data using a predetermined image coding method;

    transferring the coded image data to a transmission medium;

    decoding said coded data transferred by said transmission medium using a predetermined image decoding method; and

    reproducing said decoded data into the original video signal;

    wherein a data transfer speed for transferring coded image data to the transmission medium is selected such that the total coded data for said input video signal over a predetermined time duration becomes equal to or smaller than a transferable data amount determined by a data transfer speed at the time of decoding said coded data from said transmission medium and by said predetermined time duration; and

    data transfer information on said selected data transfer speed is transferred to said transmission medium along with said coded data.

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